Roof drain



P. M. WILCOX July 18, 1933.

ROOF DRAIN Filed Jan. 7, 1931 IRT/72250? ZJZ 7%'20055 ROOF DRAIN FiledJan. '7, 1931 2 Sheets-Sheet 2 i s lllllllllllllv y//IM IRT/673507" fa;Jf. fzZco/z 5 tavvagpf p Patented Julyi'lSl, 1933 mE-mmf `PAUL.W'I'Loox, or. LA PORTE, INDIANA, ASSIGNOR 'ro wILooX. DRAIN'ooRroItATIoN, or LAroR'rn, INDIANA, A' CORPORATION or INDIANA.v -v i iRoor- DRAIN v`applicateur mea Jaiiuay 7, 1931.Y Seriana-507,110.' Y

-My invention relates to improvements `in roof drains. and has for onekobject to pro-` vide anew and improvedr form of roof drain with a.positive rigid and secure clampingA of the roofing fabric. Anotherobjectisto provide a device wherein the clamping posts are fullyprotected from Weather' and traf'- fic, to provide a dome strainer whichcannotbe blown or` knocked over, topi-Ovide a '10 body design whicheliminates the possibility Qof airv pockets,

which yisl in itself self-*cleanjing7 .wherein the clamping means andthe" Y strainer are to a maximum extent free'from A.rusting or freezinginplace., Another obaperture 4or Aperforation through the fabric `V20 'f3 `of Figure 2; f y:-

is' threaded a drain pipe A2..V The funnel is #annular section All.

\ ralit'y7 of clamping posts orlugs B proj ectingVV fupwardlyfromtheiannular portion of the'.4

Vthe drain.

\ Figure l is a vertical section;

' section;

ings.

La cylindricalfsection' A3 with a. lower conical Asection A4t betweenitand the sleevevAl, 'an

. funnel ject .is to provide a clalnpingdevice forthel roofing fabricwhich will protect the fabric at .points of greatest weakness where itisattached to the drain and wherein the onlyis the single hole necessary`to permit 'regis-1` tering and posltionlng ofjthe fabric about My.invention is illustrated more .orr'les's diagraminatically 1n theaccompanying draw- K ings, where1n Y i Figure 2 is 4a plan4 view withparts in Figurev 3' isa section` along `the- `3%3 i Figure, 4 savertie'al `tha"ough aslightly modified form.` y '1 ,gj y

Like parts-are indicated by like charac ters throughout fthe`specificationand draw- 4 Aris a funnel terminating ina'` downwardlyextended threaded sleeveIA1 into which generally conical in shape beingmade up 'ofupper conical sectionAfr, an annular section A6, a1 conicalmouth sectionrA7 and a peripheral flange A8;I between4 the cylindricalsection A3 and thef conical section `is an Cast integralwith the funnelare a plu- A7 to point above Vtheflange A85".

these lugs being lspaced .inside Athe per i riphery' of` the funnel.lhese-.lugfcastings extendy downwardly 'outside the4 funnel, be-

cylindrical /p'ortioniAf as ,v indicated at #BIL flow *thei annularportion A15 alongside of the .Y i;

The-outer side of each vlug at a pointl above f the flange A8 isprovided Awith a v dove-tail block `being .free to-be displacedlaterally-but doveltail relation with the lug.'v B? is` a vclampingscrew threaded intheblock B3 exV tending `downwardly to engage alclampingv ring Bwhih Clamping.aringgextendsabout yes the entireperipheryof the funnel and is ofi" :such shape as to rest np'ongthe annularporj,l i

tion Aeand to be in general parallelism with fthe conical portion A7..This ring hasga flange B6 which extends upwardly 1about its -outerperiphery *and is so arranged that this 4 flange fis atright'anglestorthe -annular.lip

for. ring Af` and is` iminediatelyilabovetithe inner periphery` thereof@Thesc'rew is pro is notched to interlock with, the clamping" lugsorapostsV B; B8- isthe roof fabric or lpacking'Ineens@Therejis ofcourseahole out` i in it whereitregisters with the roof drainfand'the'mat'erial at the periphery of thathole rests lon thefiange1-A8, visheldV 'between-tho clainpB5 and the 'mouth' ofVthe'drain*beingl c ,first bent: downwardly, into p'arallelis'mgwith i`the conical portion A,7 and then'into hori- Jz'ontalffpo'sition inparallelism with thefan v.nnlarjp'ortion A and thenagainintoparallelismwi-th :the conical portionQA5-byfthe contour'of,.-thefclarnping ring. Thus there4 `are three 'bends' iny this fabricso asl toinake 'avttightjointzad vsince'the clamping" ringis seated fromabove, therel are ,ino,additionalH -holes throughA the4 fabric to"permita-leakage. f, .The-flange' B6 projecting `upwardly from theclamping 4ring 'immediately'r` above the 'placel fw'here-,the fabric isbent downwardlyfor the lifrst time protects this .bent portion of thel ffabric` Sincethis bent portion is exposed l"iiLpart atx-least beyondthe; clamping;Ting,y that isa point tof weakness; and Vthe npstandion fing flange protects that point of weakness against trailic and againstabrasion when the j device is used'withfa'tar and: gravel roof j and theVfabric'is in part atleast a wear# ingvsurface. `VThe'upper surface ofthe' clampinng ring is provided in line with each of the clamping postswith a shallowipocket B9 to engage the end of the 'locking screw toprevent drifting Vof the screw Y asit is Y lf3 tightened up and steadyand support the free end of' the screw."l Tlie'i'langefB6 is inter- Yrupted4 by a series ofrnotches about its periphery between the clampingposts so that u this Harige will not prevent drainageacross 15 :therooiingfabric. rI hese Vnotches are nar- "ro'vv enough kso as' not to;interferepwith the `pi'etecting jfunction of the fla-nge ABG and s 230andreinforcing-the#funnel castingat the y l pointL-where the clampingposts project from -i j lpresence of these pads lifts the lower rimofithefstrainer out of, rContact with the Y ian-n ularsurface Aliso thatlthere is oppor'- l g Ytnnity forz'free'swaterpassage'between thissurface and-the strainer and 'the' only Contact between. the strainer'`and the funnel is Vthe s contact along horizontal lines between theunderside ofthe strainer and these pads, thus` eidanger ,of rustingorrfreezing in. place is v -ininiinized Projecting laterally 'from'lthe' c the :strainer and integral ftheiewith are aV 'plural-itylit-.pocketsV C2, thesepockets' being Y, enclosed onthreezsides asindicatedj at .C3 and frcutawayV toward'the bottom adjacent the efniinel.soas to enclose tlieupper ends l of' fthefrcl-ainping posts, clamp.blocks andthe i i-clamping screws thereby preventing` them jVfrom,beingdisturbed byJtra'ilic',n protecting bti'em against theweatherf and thev parallel -sidesof V'the pockets are Iso',v relatedtothe clamping-,'eleinentsithat in order to `disengage ,.thefstrainerfromv the funnel-r the` strainer `Vmust :be raised unwardlya Vdistancesubstan- :tiallyj- Yequal to vthe height off the flu-g before Y r` r.itmay be removed. )This makesafstructure `Whic IQcannot be blown orknocledoil acci .dentally'because a sid'ewise pressure'- which "iiiightjtend'to tilt the.'straii'ier Ywouldjani jeu ,it'fiiil positionflong before,Vthestrainer4 would `be lifted out-of register' with the funnel" and YAA'the@clamping means. l

in my drawings Van voperative device, still lC5 many/changes mightf'bemade lin the vsize,

This dome strainerY shape,y arrangement, number and disposition ofpartsjwitliout departingv materially from the spiritof my invention andI wish, therefore, that my showing beregarded as in a sensediagrammatic.

-Figure 4, D isaclamprinfgl 'Itis different from the clamp ring' B5 ofthe `torni shqwn 'HOCllQS fortlleinward flow ot waterz. It eX- tends uptoward the surface of the ilcorwhich inithis case is considerably abovethe locking mean s, since this device is 'intendedffor floors jReferring 'te the inodiiedffornisliown in iiccr. They are snbstitutedV'for then'otches BG. B3 is airahbeted ringresting ontepY of theDIF-,secured in place. byfscrews'D5 "in ings D4'.

snbstitutefcr the Vdome,- {iitsint-othe rabhoted depression inthe ringIn this ai"` all contained boneathtlie floor surfacennd out (if-linewiththein.

i I' claim:

ln. a roof drain, 'adapted to i'ieiietrai'ze within the ineuth the?"",and'f'nct-cl'i d upon its inner periphe.v

or u holding lugs iroiectinfY u )wai-dl f-,fioin itlie Y o ,1% j i l 1 vinner `wal-'i of the funnel and adaptedto engageV the notches in theclamp Vvring;

` 2. In a roof drain a funnel a luralit-S of holding lugs projectingupwardly ironitlie inner wall and 'insidelthe mouth "thereof, a;clamping riiig'located'between the lugs and tli'eouter peripheryV ofthefunneladapted to penetrate the-mouth thereof, and means in= A, terposedbetween the lugs 'and the clamping-4 and locatedv above the rnouthfofthev funnel torhclding the clamping'ringiinposition, said y meanscomprising'clafinping blocks removably dove-tailed inthe lugsand'clainpengage]V the clamping ,ring...

D? is a flat'surfaced lgrate which Yapplicat-ion of'iny inventiontheholding lugs', the removable clamp nienibersand tljiescrews;

grate is agerturedonly Y 'Y 95Y atunnel., a clamp ringY ingscrewsthreadedV in the blo'clrjs adaptedto Y' holding lugsprojectiiigupwardly freins the.

inner wall VandQinsidetheI *mouth thereof, a Y

clamping ring locatedrbetweenthe .lugs and theouter periphery of thevtunnel adapted u to penetratethe mouth thereof, and means interposedbetween .the lugs and th e clamping ring and located abovetheinnuthofthe funi "nel for holding'the clamping ring in position,

said means comprising4 clainping V.blocks're-V j j A Y Y I A inovablydove-.tailed in theflugs and-clamping It'will be evident that whileIVhave shown leefY penetrate the mouth thereof, and means iii-- terposedbetween the lugs-and theclamping 'upwardly' outsid of the `blockstofprotect the screws.; v y

4. In a roof drain, affunnel, a. plurality of holding lugs'projectingupwardly from the inner wall and inside the mouth thereof, aclamping'ring located betweenthe lugsV and the outer periphery of thefunnel adapted to ring and located above the mouth ofthe fune nel forholding the clamping ring inposition,

said means Vcomprising clamping blocks vremovably dove-tailed in thelugs and clamp-,

ing screws threaded in the blocks adapted to engage the clampingring,the clamping ring having an outer peripheral flange Aprojecting upwardlyoutside of the blocks to protect the j screws, and removable meansassociatedV with the funnel overlying the (blocks, lugs and l screws andextending downwardly toward Vthe f flange on the Vclamping ring toenclose the clamping means.

5. In a'roof drain7 a funnel, a plurality of `holding lugs projectingupwardly from the inner wall and inside themouth thereof, a clampmgvring`located between the lugsand the outer periphery of the funnel adaptedto penetrate the mouth 'thereof7 and means interposed between the lugsand the clamping'ringi A and located above themouth of the Vfunnel forholding the clamping ring. in position, vsaid `means comprising clampingblocks r`emov- 'ably `dove-tailed in the lugs and clamping screwsthreaded in the blocks adapted to en# gage the clamping ring, theclamping ring` having an outer peripheral iange projecting .upwardlyoutside of thef'blocks to protect thev screws, and removable meansassociatedwith the funnel overlying the blocks, lugs screws andextending downwardly toward 'the 'y said clampv enclosing vmeans.` I

like comprisingincombination withja roof drain funnel, an integrallugprojecting upwardly from the inner wall, ata poi-nt spaced v x inwardlyfrom theouter periphery,thereoff' a clamping member adapted .to lie ingeneral`lr y parallelism with theinner surface ofthe funnel, a'blockremovably dove-tailed in the lug and a serewthreaded in thevblockadapted to exert a downward pressure upon the;

clamping means to ser'tyitrin the mouthof the funnel.

7 A roof drain comprising aV funnel, a plu-4 rality of lugs, projectingupwardly'fr'om the;

wall thereof Vandinside the mouth .tl'iereofgr` Y, packing clampingmeansassociated with :the

funnel and supported on saidlugs, a strainer f closing thefiiiouthfofthe funnel andghaving integral closed pockets projecting therefroml andrengagingthe lugs enclosing clamp,-

ing means.

8.V A'roof Vdrain comprising a funnel, alf

plurality of lugs projectingupwar'dlyfrom j the wall thereof and insidethe mouth thereof, packing `clamping means associated with the "-funnelandsupported on SaidlugS, a strainer closing the lmouthj of the funneland having integral closed pockets projecting therefroin' and` engagingthe lugsenclosing the clamping means, the walls of ysaid pockets beinglsubstantially v'parallel withthe lugs to com'- pel relativelyA extendedupward movement itcan be disengaged' of the strainer beforefromthefunnel.'` j

- Y PAUL M. 'WILCOXLl ies fffno

